Appeal No. 96-0706
Application 08/185,756
joined thereto. However, the balance weight is
described as being formed from a material having a
"higher density" than aluminum. Further, the molten
aluminum is described in the specification as
originally filed as being applied such that a small
amount of the material overflows the aperture so as to
form a "cap" or "rivet-like weld" to retain the body of
the balance weight on the aluminum drive shaft. Thus,
it is also clear to me that the term "higher density"
indicates that the specific metal (such as steel) used
to form the body of the balance weight is not only
heavier per unit volume than aluminum, but also
possesses a higher melting temperature than aluminum.
The aluminum welding material does not and cannot melt
any portion any portion [sic] of a balance weight made
from such a "higher density" material. Any person
having ordinary skill in the metallurgical art would
easily comprehend this inherent result from the
specification of the application as originally filed.
6. It follows, therefore, that the aluminum
welding material does not and cannot cause any
substantial deformation of any portion of the body of
the balance weight. Much like when hot water is poured
into a glass, the temperature of the molten aluminum
welding material is simply too low to cause any melting
of the "higher density" material, such as steel, which
forms the body of the balance weight. Without any such
melting, there can be no substantial deformation of the
body of the balance weight.
7. Consequently, it is clear to me that the
aluminum welding material which extends over the
portion of the second end of the body (forming the so-
called cap) must provide the sole structure for
retaining the body of the balance weight on the surface
of the aluminum drive shaft. This must be the result,
inasmuch as there is no melting of the balance weight
body and, therefore, no welding between the aluminum
drive shaft and the balance weight body. Absent the
cap structure, it is clear to me that the balance
weight body would simply fall off of the drive shaft.
The presence of the aluminum welding material within
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